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ofdm_EM_channel
ofdm系统中的em信道估计matlab仿真(em OFDM system channel estimation matlab simulation)
- 2021-03-19 20:19:19下载
- 积分：1
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QPSK-OFDM
对OFDM运用的QPSK的调制与解调，其中包括星座图，误码率的仿真(Use of OFDM QPSK modulation and demodulation, including constellation, BER simulation)
- 2020-07-02 03:20:01下载
- 积分：1
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auto_filter
说明： 自适应滤波器作为一种现代滤波器，在通信领域有着广泛的应用. 阐述了LMS以及RLS自适应滤波器的相关原理及其在通信系统去噪中的应用，并用MATLAB对自适应滤波器的去噪结果进行了相应的仿真，仿真结果直观地体现了自适应滤波器的去噪性能。
本文对自适应滤波器系统进行剖析，基于QPSK调制后的信号，并对该信号加工成为不同信噪比如SNR=0Db、SNR=5dB、SNR=10dB的信号，进行了两种分别基于LMS自适应滤波和RLS自适应滤波的操作。并对添加了有色高频噪声等加噪处理来模拟通信过程中的实际应用环境，测试所设计的低通滤波器对于噪声信号的滤波性能，并对结果进行分析总结。(As a modern filter, adaptive filter has a wide range of applications in the field of communication. This paper expounds the relevant principles of LMS and RLS adaptive filter and their applications in the de-noising of communication system, and simulates the de-noising results of adaptive filter with MATLAB. The simulation results directly reflect the de-noising performance of adaptive filter.
In this paper, the adaptive filter system is analyzed, based on the QPSK modulated signal, and the signal is processed into different signal-to-noise, such as SNR = 0dB, SNR = 5dB, SNR = 10dB signal. Two kinds of operation are carried out based on LMS adaptive filtering and RLS adaptive filtering respectively. In order to simulate the practical application environment in the communication process, we add colored high-frequency noise to test the filtering performance of the designed low-pass filter for noise signal, and analyze and summarize the results.)
- 2021-02-01 21:28:05下载
- 积分：1
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feature_rank-master
这个函数计算费舍得分或特征的鉴别系数。 它可以用于两类功能选择场景。(This function computes the Fisher Score or Discriminating Coefficient of features. It can be used in two class feature selection scenarios.)
- 2018-01-30 10:51:50下载
- 积分：1
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wavelet
能对采集到的信号进行小波分解重构，从而进行进一步的分析(The collected signal can be decomposed and reconstructed by wavelet transform, so as to make further analysis.)
- 2019-01-18 20:21:05下载
- 积分：1
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tongji
时域统计信息量，方差、均方根值、峭度因子、波形因子等(Time domain statistical information, variance, root mean square value, kurtosis factor, waveform factor, etc)
- 2016-08-12 17:53:37下载
- 积分：1
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CS-Channel Estimation
压缩感知信道估计OMP算法，有仿真图比较，注释详细(Compressed Sensing Channel Estimation OMP Algorithms, Comparisons with Simulation Charts, Detailed Notes)
- 2021-03-27 13:19:12下载
- 积分：1
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直扩信号盲识别
估计接收到的直扩信号的载频，码速率，以及扩频增益(Estimate the carrier frequency, code rate, and spread spectrum gain of the received DSS signals)
- 2017-12-13 14:55:47下载
- 积分：1
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colorbar
丰富matlab colorbar的颜色(enrich color of the matlab colorbar)
- 2017-12-05 21:14:11下载
- 积分：1
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MED算法(用于故障诊断）
针对较大噪声工况下机械故障诊断中的齿轮故障特征提取。(Minimum Entropy Deconvolution)
- 2018-07-19 14:18:02下载
- 积分：1
